In the last national election, how many days did it take for the EMB to establish final results?

United States of America, Mid-Term Congressional Elections 6 November 2018, ODIHR Limited Election Observation Mission [Final Report], accessed 16 February 2019

“Election certification deadlines and procedures vary from state to state. While unofficial election results were announced quickly and were widely discussed in the press, jurisdictions conducted canvassing of absentee and provisional ballots. Although this process was carried out within legal deadlines, in some jurisdictions the size of the ballot paper and the necessity to verify votes slowed down the process.”